Device for adjusting the relation between music-sheet and tracker.



T. DANQUARD.

DEVICE FOR ADJUSTING THE RELATION BETWEEN MUSXC SHEET AND TRACKER.

APPLICATION FILED JAN-20,1910

Patented June 20, 1916.

2 SHEETSSHEET l.

T. DANQUARD. DEVICE FOR ADJUSTING THE RELATION .BETWEEN MUSIC SHEET AND TRACKER.

Patented June 20, 1916.

SHEETSSHEET 2.

APPLICATION FILED JAN-2d, l9l0.

! efaar? UNITED sT 'rEs FATE OFFICE."

THOMAS DANQUARID', OF NEW YORK, N. Y., ASSIGNOR TO AUTO PNEUMATIC ACTION (10.,

OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

DEVICE FOR. ADJUSTING THE RELATION BETWEEN MUSIC-SHEET AND TRACKER.

Application filed January 20, 1910.

To all whom it may concern:

Be it known that I, THOMAS DANQUARD, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a new and useful Device for Adjusting the Relation Between Music-Sheets and Trackers, of which the following is a specification.

The object of this invention is to improve on the structure shown in patent to OConnor No. 789,053 dated May 2, 1905, for a web guiding device. In this patent is shbwn 'an automatic adjusting device for-preserving the proper relation between the music sheet and the tracker-bar, consisting of two orifices arranged in a spaced relation with the tracker, one of which is exposed when the sheet wanders to one side, and the other of which is exposed when the sheet wanders to the other side. Pneumatic motors are controlled by these openings, and are so connected that when the sheet wanders in either direction one or the other of said motors will operate to restore the normal condition. 4

The object of the present invention isto improve said structure to obtain great accuracy of operation under all conditions.

Referring to the drawings and in detail, Figure l is an elevation of a structure embodying partof my improvements; Fig. 2 is a plan view thereof; Fig. 3 is an end elevation of the adjusting mechanism for the roll; Fig. 1 is an elevation showing the con struction employed when it is desired to adapt the device for different widths of paper; Fig. 5 is a cross-sectional view taken on the 'line 5 5 of Fig. st; and Fig. 6 is a cross sectional view through the tracker.

Referring to the drawings and in detail A designates the winding or drawing roll of a pneumatic action, and T and T designates two trackers, the upper one T of which may be formed so as to operate with the usual eighty-eight note music, and the lower one T to operate with the usual sixtyfive note music.

10 designates a plunger or bearing which is mounted on a casing 11 which contains a spring 12 hearing on the shoulder of the plunger 10. The plunger 10 is reduced in size, and extends out through the rear of the casing 11, and has an adjustable collar 13 thereon for limiting its right-hand movement. A shaft 14 having an enlarged and Specification of Letters Patent.

Patented June 20,1916.

Serial No. 539,108.

slotted end is journaled in the framing, and in a suitable brackbt in axial line with the plunger 10.

The roll R of music issnapped between the plunger 10 and the shaft 14 in the ordinary manner. A music sheet S is drawn therefrom and wound around the winding roll. A. Between the two trackers T and T I arrange control openings and pipes a and F). These are arranged so that when the music-sheet is in normal position the ends thereof will be just covered up, but so that if the music-sheet wanders in either direction one or the other of the openings will be uncovered. By arranging the openings between the two trackers, the same mechanism can be employed to keep the music sheet in normal position no matter whether the upper tracker T is employed with eightyeight note music, or the lower tracker T with sixty-five note music.

The pneumatic motors for adjusting the sheet are shown as arranged at the left of the winding roll. These motors are shown as consisting of oppositely arranged collapsible bellows M and NE. The flexible members of the bellows are connected together by a link 15, so that the motors will be connected and opposed. The motors are arranged on the sides of valve box which has a chamber 16 connecting with the exhaust of the instrument. The motor M is connected to said chamber 16, and to the atmosphere by passages controlled by an ordinary double valve 17, and the righthand motor M is similarly connected to the chamber 16 and to the atmosphere by passages controlled by a double valve 18.

The valve 17 is connected to a diaphragm -19 arranged over a chamber to whichthe pipe a is connected, and the right-hand valve 18 is connected to a diaphragm 20 arranged over a chamber to which the pipe I; is connected. The usual leak or equalizing passages are arranged around said diaphragms.

The movable part of the right-hand motor M is connected by a link 21 to a bell-crank lever '22 which connects by link 23 to an arm or lever 24 mounted on a shaft 25 journaled in suitable bearings on the frame. On the other end of the shaft 25 is arranged an arm or lever 26 which connects by a link 27 to an arm 28 mounted on a shaft 29 journaled in a suitable bearing 30 secured to the frame. On the end of the shaft 29 is and back to normal position. sheet is employed which is not of a width suflicient to cover the control openings 0,

-' and b the same will operate through control openings 0 and (1. Suppose a music sheet of this width be employed, and adjusted properly to normal position that is to cover control openings 0 and a and uncover control openings a and Z). The air pressure through control openlngs a and Z) Wlll cause both valves 17 and 18 to lift which will cause valves 35 and 36 to move to the right, and which will cause both motors M and M to be subjected to the exhaust from chamber 34:. But as both are exposed to exhaust and are connected together they will oppose and lock each other, and there will not be any resultant movement of the motors. Now suppose the paper wanders to the right, so as to uncover control opening 0' and cover up control opening I). Since control opening 0 is connected to the atmosphere, the atmospheric pressure will be carried into the chamber 37, and will.come on top of the diaphragm 38. The exhaust will therefore pull down valve 18, which will cause valve 36 to move to the left to let atmospheric pressure into the left-hand motor M. As this takes place the right-hand motor M is still subjected to exhaust, because the valve 35 is still in its right-hand position, and this will cause the right-hand motor M to operate which will move the music roll R, and-hence the sheet to the left until the same covers up the control opening 0. When the music sheet wanders to the right to uncover the control opening 0', the control opening 6 is covered up by the righthand edge of the sheet, but the downward movement of the valve 18 will not be 0pposed as there is a bleeding passage around each diaphragm 38 and 40 as shown in Fig. .5. When the music sheet is restored to nor mal position, as previously described, the

control opening b will be again uncovered, and the control opening 0 covered which will cause the valve 18 to lift and the valve 36 to move to the right and lock the motors opposed to each other. The reverse action takes place when the music sheet wanders to the left uncovering the control opening tl and covering the control opening a. By this arrangement the music sheetwill operate through the diaphragm 39, valve 17, valve 35 and motor M which will act to move the music sheet to the right back to normal position with its edge covering control opening (2' when the valve 17 will lift and the motors M and M will again lock and oppose each other. The connections between the motors and the music roll are made to have considerable friction so that any slight oven-balancing of one motor over the other when both are subjected to exhaust will not cause any movement of'the music roll. By this arrangement the music sheet willoperate properly even if its width is such as to uncover normally control open-v ings a" and I), provided the same is still of a width to cover control openings 0' and (1. By this arrangement provision can be made for the expansion of the sheets if openings 0 and d are spaced for the normal width of music sheet, or provision may be made for contraction of. the sheet, if control openings a and b are spaced for the nor mal width of music sheet.

The details shown and described may be greatly varied by a skilled mechanic without departing from the scope of my invention as expressed in the claims.

Having thus fully described my invention, what I claim and desire to secure by Letters Patent is 1. The combination of a tracker bar having a series of music apertures, a take-up roll for drawing a perforated note-sheet forward overthe tracker bar, a spring pressed plunger for receiving the left-hand shaft for receiving the right-hand end of a music roll, and an axially slidable shaft for receiving the right-hand end of a music roll, a pneumatic control opening, a pneumatic motor arranged at the left of the tracker bar and connected to operate said axially movable shaft so that the music-roll will move axially against or.by the action of said spring, and connections between said control opening and said pneumatic motor arranged so that the pneumatic motor will operate to maintain the normal lateral relation between the tracker bar and note-sheet.

2. The combination of a tracker bar havmatic motor will operate to maintain the normal lateral relation between they tracker bar, and note-sheet.

The combination of a tracker bar having a series of music apertures,. a'take-up roll for drawing a perforated note-sheet forward over the tracker bar, a springpressed plunger for receiving the left-hand end of a music roll, an axially slidable shaft for receiving the right-hand end of the music roll, a pneumatic control opening arranged so that the lateral deviation of the note-sheet will change its condition, a pneu-- matie motor arranged at the left of the tracker bar, a cam for operating said slidablc shaft, connections between said motor and said cam, and connections between said control opening and said pneumatic motor arranged so that the pneumatic motor will operate to maintain the normal lateral relation between the tracker bar and note-sheet.

4-. The combination of a tracker bar having a series of music apertures, a take-up roll for drawing a perforated note-sheet forward over the tracker bar, a spring-pressed plunger for receiving the left-hand end of a music roll, an axially slidable shaft for receiving the right-hand end of a music. roll, a pneumatic control opening arranged so that'the lateral. deviation of the note-sheet will change its condition, apneumatic motor arranged at the left of the tracker bar and connected. to operate said axially slidable shaft, a lever arranged in said connections so that the parts can be manuallyoperated, and connections between'said control opening and said pneumatic motor arranged so that the pneumatic motor will operate to maintain the normal lateral relation be tween the tracker bar and note-sheet.

5. The combination of a tracker bar having a series of music apertures, means for drawing a perforated note-sheet forward over the tracker bar, a pneumatic control opening for cooperation with the edge of the sheet, a second pneumatic control opening spaced a different distance from the music apertures relatively to the first control opening and also arranged for cooperation with the same edge of the note sheet as the 'first named pneumatic control openin a. pneumatic motor connected to adjust the lateral relation between the notesheet and tracker bar, and connections between said control openings and said pneumatic motor arranged so that the pneumatic motor will operate to maintain the normal lateral relation between the tracker bar and note-sheets.

(3. The combination of a tracker bar ha ing a series of music apertures, means for drawing a perforated note-sheet forward over the tracker bar, a pneumatic control opening carried by the tracker bar, a secoud pneumatic control opening carried by the tracker bar and arranged nearer to the music apertures than the first control opening and also arranged for cooperation with the same edge of the note sheet as the first named pneumatic control opening, a pneumatic motor connected to adjust the lateral relation, betweenthe note-sheet and tracker bar, and connections between said control openings and said pneumatic motor arranged so that the pneumatic motor will operate to maintain the normal lateral relation between the tracker bar and notesheets of different width.

7. The combination of a trackeizbar hav ing a series of music apertures, means for drawing a perforated note-sheet forward over the tracker bar, a set of two pneumatic control openings spaced a distance apart for coiperation with the edges of a note-sheet, a second set of two pneumatic control openings spaced a different distance apart relatively to the first set, a pneumatic motor connected to adjust the lateral relation between the note sheet and tracker bar, and connections between said control openings and said pneumatic motor arranged so that the pneumatic motor will operate to maintain the normal late 'al relation between the tracker bar and notesheets.

8. The combination of a tracker bar having a series of music apertures, means for drawing ,a perforated note-sheet forward over the tracker bar, a set of two pneumatic control openings spaced a distance apart for coiperation with the edges of a note-sheet, a second set of two pneumatic control openings spaced a narrower distance apart relatively to the first set for cooperation with the edges of a note-sheet of a less width, a pneumatic motor connected to adjust the lateral relation between the note-sheet and tracker bar, and connections between said control openings and said pneumatic motor arranged so that the pneumatic motor will operate to maintain the normal lateral relation between the tracker bar and note-sheets of different width.

9. The combination of a tracker bar having a se ies of music apertures, means for drawing a perforated note-sheet forward over the tracker bar, a set of two pneumatic control openings spaced a distance apart for *coiiperation with the edges of a note-sheet, a second set of two pneumatic control openings spaced a narrower distance apart relatively to the first set for cooperation with the edges of a note-sheet of a less width, :1 pneun'iatic motor connected to adjust the lateral relation between the note-sheet and tracker bar, connections between the first set of pneumatic control openings and the motor arranged so that when one of said openings is uncovered the motor will operate, and so that when both of said openings are uncovered the motor will not operate. and connections between the second set of guide openings and the motor arranged so that when both right-hand openings are in covered the motor will work in one direclion, and so that when both left-hand guide openings are uncovered the motor will oper ate in the opposite direction.

10. The combination of a tracker bar having a series of music apertures, means for drawing a perforated note-sl1eet forward over the tracker bar, a set of two pneumatic control openings spaced a distance apart for cooperation with the edges of a note-sheet, a second set of two pneumatic control. openings spaced a narrower distance apart relatively to the first set for cooperation with the edges of a note-sheet of a less width, a pneumatic motor connected to adjust the lateral relation between the note-sheet and tracker bar, motor controlling valves controlled from said pneumatic control openings and arranged so that when either one of the first set of control openings is operative the motor will operate, so that if both. of the said first set of control openings are simultaneously operative the motor will re main inoperative, and so that if either control opening of the second set is operative the motor will operate.

11. The combination of a tracker bar hav ing a series of music apertures, means for drawing a perforated note-sheet forward, over the tracker bar, a set of two pneumatic control openings spaced a distance apart for cooperation with the edges of a note-sheet, a second set of two pneumatic control openings spaced a narrower distance apart relatively tot-he first set for cooperation with the edges of a note-sheet ot a less width, a double pneumatic motor connected to adjust the lateral relation between the notesheet and tracker bar, connections between said control openings and said pneumatic motor arranged so that when only one 01 the first set of control openings is operative one part of the motor will work, so that when both oi the first set of control. openings are operative both parts bl? the motor will worlr in opposition and thereby balance eachother, and so that when only one of the second set of control openings is operative one part of the motor will work, whereby the double motor will operate to maintain the normal lateral relation between the tracker bar and no'te sheets of different width.

12.Tl1e combination oi? a tracker bar hav ing a series of music apertures, means for drawing a perforated note-sheet forward over the tractor bar, a set oi two pneumatic control openings spaced a distance apart for cooperation with the edges of a note-sheet, a second set of two pneumatic control openings spaced a narrower distance apart rela tively to the first set for cooperation with the edges of a note-sheet of a less width, a double connected pneumatic motor arranged to adjust the lateral relation between the note-sheet and tracker bar, valves and 36 for controlling the motors, valves 1''? and 18 for controlling the valves and 3G, diaphragins for operating the valves 17 and 1.8

controlled by the first set of pneumatic control openings and diaphragms for operating the valves 17 and 18 controlled by the second set of pneumatic control opening arranged so that the pneumatic motor will operate to maintain the normal lateral rela tion between the tracker bar and note-sheets of different width.

In testimony whereof I have hereunto set any hand, in the presence of two subscribing 

